The psychiatric mental health nurse practitioner (PMHNP) post-master’s online certificate is designed to meet the growing need in the United States for medical professionals trained in treating mental health and substance disorders. This program is ideal for you if you are an APRN or non-APRN who has completed a master’s degree and wishes to expand your scope of practice to include the care of individuals, families, and groups with psychiatric and mental health needs. Since this certificate is offered online, you can complete your clinical practicum close to where you live.